InChI=1/C21H31NO2/c1-15(11-19(23)24)9-8-10-22-18-13-16(20(2,3)4)12-17(14-18)21(5,6)7/h8-9,11-14,22H,10H2,1-7H3,(H,23,24)/p-1/b9-8+,15-11+/fC21H30NO2/q-1 4E20C9F3EBB7EC2E